Twine-tension for binders.



PATENTBD SEPT. 24, 1907 C. B,I SGHREPBL. ATWINE TENSIN FOR BINDBRS.

APPLICATION FILED DBO.29, 1906.

Picrn's'fr ernten.

Twins-TENSION' Fon BINDEns.

Specification of I ettersf Patent.

Patented Sept. 24, 1907.

' Application filed December 29,1906. Serial No. 349,954.

'I'o all ullom [L muy com crn lle il. known than l, (.nnntus ll.Somieres, n citizen ol' the lfnited Sintes, residing :it Coats, in thecounty ol' lmtt and Stute ol' lions-ns, have invented certain knetter-irespcctive of the position of the needle and -foot portion 8, theLitter extending substantially lon? v whicltsgrids the impbsitionot'stmin on the twine at all points between such device and the twinebox, nud my object. is to prmluce a. tension device of this char rgterwhich will operate eflicicntly and reliably :'.nd

5 embodies the desirable tentures oi simplicity, strength, durabilityand chcapness ot' constructionl with this and other objects in view theinvention consists in certain novel and peculiar features ofconstruction :md organization as hereinafter described and Y 20 claimed;and in order that it may be fully understood reference is to be had tothe accompanying drawing, in

` which Figure 1, is side view of a binder needle equipped with atension dei-'ice embodying my invention. Fig. 5 2, is n section on theline II-II of F ig., l. Fig. 3, is a .fragmentary view taken on the lineIII-III of Fig. 2. 'Fig 4, is a f mgmentnryyiew taken on the line I V-IV'I oi Fig. 1. Fig. 5,' is a side view on a reduced scale of a. cornbinder needle equipped with a tension device 0 'embodying the invention.Fig. 6, is a. fragmentary sectional perspective view taken approximatelyon the line VI of Fig'. 5.

In the said drawing, 1 indicates s. needle of the usual I configurationin side view but reduced in thickness as 5 shown so that its shank 2 andits heel portion shall be formed with connecting ribs 3 und 4respectively. The shank of the needle is provided with the usual opening5 whereby it is mounted on the operating shaft, not shown, andcontiguous to said opening is 0 a guide hole 6, which by preference isformed in the re duced portion 3 of the shank. The needle is alsoprovided in said reduced portion 'at the junction of the 'shank und thelower portion with asubstautially bootslMpcd'Opening, comprising the legportion 7, and the gitndin-.dly of theshank, which at the inner end 0Ithe opening is grmved as at 9, to permit' the twineT to enter seid footportiml of the opening with the least deilection or bending possible.

l0 indie-.uis n guide t'onuing n part of the reduced portion of theneedle and projecting into the bootshuped opening 7 and terminating inoutwardly projecting horns 1l flanking' the sln llow clnumel l2 in theouter end of the lug` such channel being in line with the passage 13lending to flaring eye llat the iront end the needle. To reduce wear onthe face of said I channel und the lower portion of the eye due lo the lfriction ol' the twine. thereon, l provide u lnud metal spring plnle Iiiengaging the Vbuse oi tht` channel and termin-.ning in n hook 1G snuglyembracing the lowel portion of the eye, said wear piste, as it is iniuct, being secured in position preferably hy means of a screw holt 17extending through the lower end et' the weer plate und into the needleas shown clearly in Fig. 3. At the. lower margin of the boot-shapedopening the reduced portion of the needle is widened ut each side byribs 18, and below said ribs is provided with apertures 19, the seriesbeing armnged longitudinally oi the lower portion ofthe needle.

2O indicates u, pnir of tint springs tilting against the lower portionof the needle and having their upper endl-slitting snugly together aslips 21 within the leg portion of the -boot shaped opening, theintermediate portions of the springs b eing oppositely bowed :1s-.1t,22, so as to provide the necessary stiffness and to lit around the ribs18 hereinbeore described, the bowed portions of the springs beingprovided with openings 23, through which the horns ll project, and bywhich thus arranged forni closures for ,the opening which absolutelyguard against lateral slippage of the twine from the horns.

The springs are secured reliably` to the reduced portion 4o the needleby bolt 24 and above said bolt are provided with longitudinal series ofapertures 25 registering with apertures 19 of the ,needle and throughone oranoter of said series oi alined apertures a. clamping bolt 26extends and is engaged at its threaded end. by Aa nut 27. By causing theclamping bolt to engage difierent sets oi holes or apertures,tfvzniation of the pressure oi the lips on the twine is effected.

-The'twine extends from the twine box,.not shown, through the guide hole6, then alongside the reduced portion 3 of the stem and through thegroove 9 in the corresponding side of the needle and into the footportwineexteuds up through the horned guide 10 in the elciucnt of thedevice and then up through passage 13 and inwardly through the eye li tothe knetter, not shown.

atapont between the tip ofthe needle and the knetter in the usualmanner, so that upon the upward movement of thenecdle, the bundle may beencircled by the twine and thelatter then tied in the usual manner. vIlsthe twine is drawn through the needle, the spring pressed lips yield andreclamp the twine the instant its feeding movement ceases. It will beunderstood that-between the clamping .point and the knetter, the twinemakes only L single bend, viz. where it passes .through the e 'e 14 andthat at the other bending points tionoithc boot shaped opening. Fromsaid point the vchannel l2 thereof, between the lips of the clamp,

the springs ure guided in their movement. The springs The twine isadapted for engagement with theigmn

